PT-2025-45598 · Gnu+2 · Gnu Libmicrohttpd+2

Published 2025-11-10 · Updated 2026-01-12 · CVE-2025-59777

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions GNU libmicrohttpd versions prior to 1.0.2

Description A flaw exists in GNU libmicrohttpd that involves a NULL pointer dereference. This issue affects versions up to and including 1.0.2. A crafted network packet sent by an attacker could lead to a denial-of-service (DoS) condition. The issue was addressed with commit ff13abc on the master branch of the libmicrohttpd Git repository.

Recommendations Update to a version of GNU libmicrohttpd later than 1.0.2.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

AZL-69980

AZL-70046

CVE-2025-59777

OPENSUSE-SU-2026:20016-1

SUSE-SU-2025:21200-1

SUSE-SU-2025:4291-1

SUSE-SU-2025_4291-1

SUSE-SU-2026:20029-1

SUSE-SU-2026:20057-1

SUSE-SU-2026:20072-1

Affected Products

Debian

Gnu Libmicrohttpd

Suse

References · 31

• https://nvd.nist.gov/vuln/detail/CVE-2025-59777 · Security Note
• https://osv.dev/vulnerability/CVE-2025-59777 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-70046 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4291-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-59777 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-59777 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-69980 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20029-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20072-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21200-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20016-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-59777 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-59777 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20057-1 · Vendor Advisory
• https://git.gnunet.org/libmicrohttpd.git/commit/?id=ff13abc1c1d7d2b30d69d5c0bd4a237e1801c50b · Patch